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" ZSheets--Sheet-l H. D.VSW|"FT &'D."`W. SWIFT. l Impr'oveme-nt inEnvelope-Machines.

Patented May 30,1871'.

` `2'Sheets--Sheet 2 Hf. D. sw-IFT @L D. wswufr.\`

lmprovemen in Envelope-Machines.

Patented May 39,1871l liasse WHEELER SWIFT, 0R WORCESTER, MASSA."GEUSETTSASSIGNORS TQTHEMSELvRS AND e. HENRY wHrrcoMR a @QaOFfSAMErLAoE. i j

` cation, in which-` l j "Figure 1represents"afrontelevation,partly` iinsection, of our improvedenvelope-machine, the line .fr w, Fig. 2,indicating the plane of section. Fig. 2 -is `a plan or top view, partlyin section, of thesame. Fig. 3isa detail face ."viewofthevertically-adjustablepivotedblank- 1 support. Fig. 4 isa detailtransverse section ofthe same taken on the line y y, Fig. 3. Fig. 5` isadetail vertical section of the receiver, f *the line z z, Fig. 2,indicating the plane of sec tion. u Fig. is averticalrsection of themachine takenon the'plane of theline ww, Fig. l. Fig.'

` machine, "showing the parts in asomewhat i different position fromthat shownin Fig. 2.

` Similarlettersfof `reference indicate corre- `spondingfparts.`

. `Onriinvention consistsin `certain novel fea-` turesof construction,combination, and arrangement,which `willfirst be described in connectionwith all thatis necessaryto a full understanding thereof and then beclearly e. pointed out inthe claims.

A in the drawing represents the'frame of,

2 our improved envelope-folding machine;` It is made of metal or otherSuitable material, of

` suitable size and shape, suiiciently strong to sustain themachinerywhich is connected with the folding mechanism. B is thehorizontal driving-shaft, hung in theframe Abelow the 4topplate or tablea. ofthe same. From the face of the table a projects a vertical pin, b,to which is pivoted theblank-snpport C. This j blank-supportis aiplateof the requisite form, with a ange, c, at its front edge. It has acurvedslot, as shown in Fig. 2, so that it can e be swung fiush with a"curved rib, d, projecting f 7 is a plan or top view, partly in section,of the .2,.F`iM-3lRovEMENT` IN. ENvELoPE-MACHINES.

reptfigg peilt ofLeat retest N6. 115,382. dated May so, 1871.

` trema., which 4rib enters said slot whenever e the blank-support isswung against the ixed stops e e, asin Fig. -7. The blank-support can beheld elevated above the plate a by means of a' spring-catch, f, as shownin Fig. 3. In

. this elevated position of the blank-support an 4arm projecting fromthelatter fits against and under ahook, g, as shown in Figs. 3 and 4. -h isa Vertical pin projecting through the rib d,

. and fprovided with a spring whichthrows it up against the outer edges,of the blanks on the support G, serving to keep them in place while thesupport is beinglowered, and swung back whenever it is to be adjustedfor a new supply. A sleeveyt', sliding on one ofthe stops e, restsslightly on the upper blank, and acts as a weight for all the blanks,preventing all but the upper blank from adhering to the glimmer. Theblanks are placed uponthe table A, under the elevated plate C, the pin hbeing pressed down. These blanks are placed against the stops e, wherebythey are brought into the right position. The pin h is then released,and tends to hold the blanks in place. The rib d prevents the blanksfromresting ush upon the plates a, and admits the plate C when the same hasbeen swung out, as in Fig. 2, and lowered to be put under the pile ofblanks. Thenceforth the blanks rest on the plate C, are held in placelaterally by the stops e and ange c and by the pin h, and vheld down bythe sleeve c'. From the pile on the plate O blanks are taken in propersuccession by a gummed lifter, not shown. The lifter is gummed by aroller, j, which is hung ina vibrating frame, D. i This frame D swingson a pin, 7c, and is, by a system of levers, ZZ, connected with a cam,m, on the shaft B, whereby, and by a counteracting spring, n, itreceives the necessary motion for applying the gum to the lifter. Theblank,

which has been elevated and detached by the lifter, is taken from thesame by a vibrating frame, E, which has hook-shaped arms, and

acts in the ordinary manner. The frame E is affixed to a sleeve or tube,o, which surrounds the pin la, and has an arm, p, at its lower end,which receives motion by a cam, r, of the shaft B. The frame E carriesthe blank from the lifter over the folding apparatus-that is to say, itmoves from the position shown in Fig. 7 to that shown in Fig. 2. Theblank is then forced down to the folders by a plunger, not shown, andhas the several aps turned over by the several pivoted lingers s s ofthe folding mechanism, which operates in the well known or in suitablemanner. Motion is imparted to the iin gers s by a cam or cams, t, on theshaft B. The envelope, after having been folded, is elevated from thefolder by a vertically-slidin g yoke, F. The same rests upon a cam, fv,of the shaft B, and is elevated by the same after every envelope hasbeen folded, and is then drawn down by a spring, i2. The two arms of theyoke hold the envelope elevated in such a position that it can beconveniently removed by a vibrating slide, G. This slide is a framehaving downwardly-projecting fingers a2, and projects from the same tubeo to which the frame E is affixed, so that consequently the movements ofthe frame E and G are simultaneous and in the saine direction. Theframes E and G being thus connected, and their movements alike, itfollows that a blank will be taken to the folders by E whenever theslide G removes anI envelope from the same. Considerable time andmachinery are economized by this connection. The fingers a2 of the slideG push the envelope from the yoke upon two spring-arms, I I, which areaffixed at b2, against the under side of an upright case or receiver, H.This receiver is a slotted case or receptacle for the envelopes. Thespringarms receive the envelopes, as stated, from the yoke, and thengers a2 push the same along until they are just under the lower openingof the receiver. J is a vibrating comb pivoted to an arm or lever, L,which turns loose on the tube o, being affixed to a tube, c2, whichsurounds said tube 0. The tube c2 has a projecting arm, d2, which isactuated by a cam, e2, of the shaft B, whereby the arm L is swung in ahorizontal direction. `It will be noticed that the pivots k, o, and c2occupy the same axis, being arranged one within the oth er. Thisarrangement economizes considerable in the putting up of the machine,and prevents a great deal of unnecessary friction. An arm, f2,projecting from the under side of the comb J, straddles the head g2 of aT-shaped upright slide, M, whichis supported by a lever, h2, andreceives motion by a cam, j, of the shaft B. Vhenever an envelope hasbeen placed upon the spring-fingers under the receiver the comb J is, bythe arm L, swung under such envelope, and is then swung up by theelevation of the slide M so as to lift the envelope from the saidspring-arms. Thelatter are then free to receive another envelope by theslide G, and when that has arrived the comb is lowered and moved out ofthe way to let all the envelopes rest upon the spring-arms ceiver,clearing the arms for the reception of another envelope. The receivercarries a slide, k2, which rests as a yielding weight on the envelopesdeposited under it.

There are or may be projections on the upper sides of the spring-arms I,just under the case H, to prevent the envelopes from being returned tothe folders with the slide.

Having thus described our invention, we claim for us as new, and desireto secure by Letters Patent- 1. The blank-support G, pivoted to the pinb, and combined with the spring-catch f, hook g, and pin h, to operatesubstantially as herein shown and described.

2. The sleeve or weight t', arranged on pin e, as described, for thepurpose of holding down the blanks and preventing more than one frombeing taken up by the gummer, as set forth.

3. The vibrating frameE combined with the slide G, and connected withthe same, as described, so that one blank is conveyed to the folderwhenever a folded envelope is being removed therefrom, as specified.

4. The pivots 7c, o, and 02 of the frames D E G and arm L, arrangedaround one axis, substantially as and for the purpose herein shown anddescribed.

5. The vibrating frame G, having the ngers a2, combined with thespring-arms I, for conveying the envelopes to the same from the yoke F,as set forth.

6. The comb J, vibrating horizontally and vertically, and combined withthe spring-arms I to lift the envelopes from said arms to clear them forthe further reception of envelopes, as specified.

7. The vibrating frame L, combined with the pivoted comb J to actuatethe same l1orizontally, .as herein shown and described.

8. The upright slide M, combined by the arm f2 with the pivoted comb Jto actuate the same vertically, substantially as herein shown anddescribed.

HENRY D. SWIFT. DANIEL WHEELER SWIFT.

Witnesses:

THOMAS H. GAss, J. HENRY HILL.

